Well, that's a bit hard to say. There are many artists who have sung songs about great love stories. It might depend on personal preferences. Maybe someone like Whitney Houston or Celine Dion has a song that fits the bill for you.
The song 'Greatest Love Story' is sung by Lanco. Their performance of this song has gained a lot of attention and fans. The melody and lyrics are quite catchy.
Well, Bulma and Vegeta. Bulma is a brilliant scientist and Vegeta is a Saiyan prince. Their story began in a rather unexpected way. Vegeta was initially a foe, but as he spent more time on Earth, he and Bulma grew closer. She was able to see past his tough exterior. Their love grew as they faced various threats together. And with the birth of their child, their bond deepened. Vegeta, who was once so cold - hearted, started to care more about Bulma and their family.